Structure 5370 · Rice County, MN

Mn 60 over Straight R Rr Street

Carries Mn 60 over Straight R Rr Street, 0.3 Mi W Of Jct TH 299.

Overall conditionFair

Set by its lowest-rated component: Superstructure and Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT751 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

751 ft end to end, longest span 122 ft: about 2.1 football fields. Lengths and the semi-truck on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a deck arch.

Built1937rebuilt 2009
Length751.3 ft229 m
Daily traffic11,114counted 2022
Last inspectedJune 2023every 24 months

Location

StateMinnesota
CountyRice
Location0.3 Mi W Of Jct TH 299
CarriesMn 60
CrossesStraight R Rr Street
Coordinates44.29091, -93.26456

Physical Characteristics

MaterialConcrete Continuous
DesignArch - Deck
Total Length751.3 ft (229 m)
Max Span122.4 ft (37.3 m)
Deck Width44.9 ft (13.7 m)
Deck Area3137.3 sq m
Main Spans3
Year Built1937 (reconstructed 2009)

Traffic

Avg Daily Traffic11,114 (2022)
Truck Traffic5%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is on the National Register of Historic Places
Scour Critical4 — Foundations need monitoring
Structure Number5370

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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